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LA2.py
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LA2.py
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def accept_matrix(M) :
print("\nEnter the order of the Matrix (row,col) : ")
r = int(input("\trow = "))
c = int(input("\tcol = "))
print("Enter the elements of the Matrix : \n")
for i in range(r) :
A = []
for j in range (c) :
A.append(int(input()))
M.append(A)
print("\nMatrix accepted successfully\n")
def display_matrix(M,r,c):
print("Matrix (%d,%d) : "%(r,c))
for i in range(r) :
print("\t\t",end=' ')
for j in range(c):
print("%3d"%M[i][j],end=' ')
print("")
def addition_matrix(M1,M2,M3,r,c) :
for i in range(r) :
A = []
for j in range(c):
A.append(M1[i][j] + M2[i][j])
M3.append(A)
def substraction_matrix(M1,M2,M3,r,c) :
for i in range(r) :
A = []
for j in range(c):
A.append(M1[i][j] - M2[i][j])
M3.append(A)
def multiplication_matrix(M1,M2,M3,r1,c1,c2) :
for i in range(r1) :
A = []
for j in range(c2) :
sum = 0
for k in range(c1) :
sum = sum + (M1[i][k] * M2[k][j])
A.append(sum)
M3.append(A)
def find_transpose_matrix(M,r,c,T) :
for i in range(c):
A = []
for j in range(r):
A.append(M[j][i])
T.append(A)
def main():
while True :
print("\t\t\t1: Accept Matrix");
print("\t\t\t2: Display Matrix");
print("\t\t\t3: Addition of Matrices");
print("\t\t\t4: Substraction of Matrices");
print("\t\t\t5: Multiplication of Matrices");
print("\t\t\t6: Transpose Matrix");
print("\t\t\t7: Exit");
ch = int(input("Enter your choice : "))
M3 = []
if (ch == 7):
print ("End of Program")
break
elif (ch==1):
M1 = []
M2 = []
print("Input First Matrix ")
accept_matrix(M1)
r1 = len(M1)
c1 = len(M1[0])
print("Input Second Matrix ")
accept_matrix(M2)
r2 = len(M2)
c2 = len(M2[0])
elif (ch==2):
print("\tFirst ",end=' ')
display_matrix(M1,r1,c1)
print("\tSecond ",end =' ')
display_matrix(M2,r2,c2)
elif (ch==3):
print("\tFirst ",end=' ')
display_matrix(M1,r1,c1)
print("\tSecond ",end =' ')
display_matrix(M2,r2,c2)
if(r1 == r2 and c1 == c2) :
addition_matrix(M1,M2,M3,r1,c1)
print("\tAddition ")
display_matrix(M3,r1,c1)
else :
print("Addition not possible (order not same)")
elif (ch==4):
print("\tFirst ",end=' ')
display_matrix(M1,r1,c1)
print("\tSecond ",end =' ')
display_matrix(M2,r2,c2)
if(r1 == r2 and c1 == c2) :
substraction_matrix(M1,M2,M3,r1,c1)
print("\tSubstraction ")
display_matrix(M3,r1,c1)
else :
print("substraction not possible (order not same)")
elif (ch==5):
print("\tFirst ",end=' ')
display_matrix(M1,r1,c1)
print("\tSecond ",end =' ')
display_matrix(M2,r2,c2)
if(c1 == r2) :
multiplication_matrix(M1,M2,M3,r1,c1,c2)
print("\tMultiplication ")
display_matrix(M3,r1,c2)
else :
print("Multiplication not possible ")
elif (ch==6):
print("\tFirst ",end=' ')
display_matrix(M1,r1,c1)
find_transpose_matrix(M1,r1,c1,M3);
print("\tTranspose ",end=' ');
display_matrix(M3,c1,r1)
print("\tSecond ",end =' ')
display_matrix(M2,r2,c2)
M3 = []
find_transpose_matrix(M2,r2,c2,M3);
print("\tTranspose ",end=' ');
display_matrix(M3,c2,r2)
else :
print ("Wrong choice entered! try again")
main()